JPH0649051B2 - Medical waste treatment equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for treating medical waste, and particularly to an apparatus for treating medical waste that can safely and easily treat medical waste.

[Conventional technology and problems]

BACKGROUND ART Conventionally, medical waste such as disposable syringes, needles, scalpels, and other objects may be infected, and care must be taken when handling them.
Especially, it is necessary to pay attention to disinfection and the like for the treatment.

Therefore, there is a demand for a medical waste treatment device capable of treating medical waste safely, easily and at low cost.

Therefore, it is an object of the present invention to provide a medical waste treatment device that is safe, easy, and low cost for treating medical waste.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention melts medical waste containing a synthetic resin, which is input from the medical waste treatment equipment hopper 1, as shown in FIG. 1, and externally uses this ingot as an ingot. A medical waste treatment device having an ingot molding part 3 arranged in a take-out part 2 for taking out and an exhaust gas treatment part 4 for treating exhaust gas generated in the ingot molding part 3, wherein the ingot molding part 3 is a medical device. The bottom heating means 7 having the side wall heating means 5 and the hole 6 for heating the waste to a melt, the medical waste is stirred, and the melt is moved downward from the hole 6 of the bottom heating means 7. A first melting chamber 9 having a stirring blade 8 for pushing out; a bottom wall 11 located below the first melting chamber 9, having a hole 10 at the bottom and formed in a mortar shape, and having a heating means arranged; , The outer edge of the bottom wall 1 A second melting chamber 13 having a screw 12 that pushes the melt downward from the bottom hole portion 10 in the vicinity of the second melting chamber 13 and a lower portion of the second melting chamber 13, and the extruded melt is accumulated. And an ingot forming chamber having an ingot forming portion 14 that is solidified to form an ingot. The stirring blade 8 and the screw 12 are coaxially arranged and are rotatably driven by a double formed rotating shaft 15. The exhaust gas processing unit 4 includes a bypass pipe 16 that connects the first melting chamber 9 and the second melting chamber 13, and the first melting chamber 9
And a tar recovery unit 17 that recovers tar from the exhaust gas recovered from the ingot molding chamber and returns it to the second melting chamber 13.
And a moisture separator 1 for recovering water from the exhaust gas from which tar is recovered and returning the remaining exhaust gas to the second melting chamber 13.
8, a discharge unit 20 that discharges a part of the exhaust gas from the water separation unit 18 to the outside air, and a water purification unit 19 that purifies and discharges the separated water.

[Action]

According to the medical waste treatment apparatus of the present invention, the medical waste containing the synthetic resin charged from the hopper is first agitated by the agitating blades of the first melting chamber of the ingot molding unit, and the side wall heating means, When heated by the bottom heating means, the synthetic resin becomes a melt and the medical waste is sterilized. At this time, the metal that does not melt and the thermosetting resin are embedded in the melted thermoplastic resin. Then, it is sent to the second melting chamber by the stirring blade, further stirred by the screw, further heated and formed into a mortar shape, and is extruded downward from the bottom hole portion of the bottom wall, and further well mixed. The contained gas is extruded and its volume becomes small.

Then, the melt extruded from the hole is solidified in the ingot molding chamber to become an ingot. At this time, the injected medical waste is melted, stirred, and further pressed and solidified by the screw, so that the volume thereof is reduced, and the medical waste is completely sterilized into an ingot.

Furthermore, the tar contained in the exhaust gas generated during melting is
It is recovered by the tar recovery unit and sent to the second melting chamber where it is mixed with the melt. Further, since the water content in the exhaust gas is separated by the water separation section and the separated water is purified and discharged by the water purification section, no harmful substances are discharged to the outside.

〔Example〕

Hereinafter, an embodiment of a treatment layer for medical waste according to the present invention will be described in detail with reference to the drawings.

1 to 5 show an embodiment of an apparatus for treating medical waste according to the present invention.

In this embodiment, as shown in FIG. 1, the apparatus for treating medical waste melts the medical waste containing the synthetic resin charged from the hopper 1, forms it as an ingot, and takes out this ingot. It is composed of an ingot molding part 3 arranged in the take-out part 2 and an exhaust gas processing part 4 for treating exhaust gas generated in the ingot molding part 3.

Then, as shown in FIG. 2, the ingot molding part 3 has a film heater 5 which is a side wall heating means for heating medical waste into a melt, and a hole 6, and is formed by embedding an embedded heater. A cylindrical first melting chamber 9 having a bottom heating means 7 and a stirring blade 8 for stirring medical waste and pushing the melt downward from the hole 6 of the bottom heating means 7, and a first melting chamber. It is located at the bottom of 9 and has a hole 10 at the bottom.
And a bottom wall 11 having a mortar-like shape and having the heating means 21 disposed thereon, and an outer edge portion of the bottom wall 11 close to the lower wall,
It has a screw 12 for pushing the melt downward from the hole 10 at the bottom, and is similarly positioned in a cylindrical second melting chamber 13 and a lower portion of the second melting chamber 13 and stores the extruded melt. And an ingot forming chamber 14 that is solidified and solidified to form an ingot. Further, the stirring blade 8 and the screw 12 are coaxially arranged, and the rotating shafts 15a, 15 are formed in double.
It is connected to b and is rotationally driven via a motor 22 and a gear 23 provided above the first melting chamber 9.

Furthermore, as shown in FIG.
A gas pressure adjusting bypass line 16 connecting the first melting chamber 9 and the second melting chamber 13, and tar recovery from exhaust gas recovered from the first melting chamber 9 and returning to the second melting chamber 13. Part 17, a moisture separating part 18 for recovering moisture from the exhaust gas from which tar is recovered and returning the remaining exhaust gas to the second melting chamber 13, a gas pressure adjusting part 36 for adjusting the amount of return gas, and the outside. The exhaust gas purifying unit 35 purifies the gas discharged to the air, and the water purifying unit 19 purifies and discharges the separated water.

In the present embodiment, the exhaust gas processing unit 4 is provided with a large blower 31 that sucks the exhaust gas from the first melting chamber 9 and the ingot molding chamber 14 into the tar recovery unit 17 and sends it to the moisture separation unit 18. ing. Further, in the present embodiment, a pipe 33 is provided between the water separation section 18 and the second melting chamber 13.
And a branch pipe 34 is provided in the middle thereof, and after purifying the gas by the external exhaust gas purification unit 35 via the gas pressure adjusting unit, one end thereof is opened to the atmosphere.

Next, the structure of the tar recovery unit will be described. 4 (1) through
(3) shows the structure of the tar recovery unit. In this embodiment, the tar recovery unit 17 has a fourth structure in which a case 35 in which the outside of glass wool as a heat insulating material is formed of foam concrete is used.
A plurality of passage holes having different diameters shown in FIGS. (2) and (3) are opened to alternately arrange two kinds of baffles 36a and 36b, and a gap 37 is provided at the bottom of the case. When passing through the baffles 36a and 36b, tar floating in the exhaust gas is dropped and collected. still,
In this embodiment, a spiral ring 37 is provided on the input pipe to the tar recovery unit 35. And in this embodiment,
A pipe line 36 is provided between the ingot forming chamber 14 and the first melting chamber 9.
Is provided through a small blower 37, and the ingot forming chamber 14
The exhaust gas inside is sent to the hopper, and an air curtain is formed to prevent the exhaust gas from flowing out when the hopper is opened.

Also, as shown in FIGS. 5 (1) and 5 (2), the water separator 18 is
A heat exchanger 41 is provided in a case 40 in which the outside of glass wool, which is a heat insulating material, is formed of foam concrete, and a refrigerant from a refrigerator 42 is circulated in the heat exchanger 41 to condense water vapor in exhaust gas. Is. In addition, the water purification unit 19
A filter 43 formed of an adsorbent such as activated carbon is detachably provided in the case 44 so as to adsorb impurities in water and purify discharged water.

Therefore, according to the present embodiment, the medical waste containing the synthetic resin charged from the hopper is first agitated by the agitating blade 8 of the first melting chamber 9 of the ingot molding part, and the side wall heating means 5 and the bottom part are heated. Heated by means 7, the synthetic resin of the medical waste becomes a melt and is sterilized. At this time, the metal that does not melt and the thermosetting resin are embedded in the melted thermoplastic resin. Then, by the stirring blade 8, the second
The bottom wall 11 sent to the melting chamber 13 and further stirred by the screw 12 is further heated and formed into a mortar shape.
It is extruded downward from the bottom hole portion 10 of the above and further mixed well.

Then, the melt extruded from the hole is solidified in the ingot molding chamber 14 to become an ingot. Since the medical waste thus input is melted and agitated, its volume is reduced, and it is ingot-formed as a completely sterilized product, which facilitates its handling.

Furthermore, the tar contained in the exhaust gas generated during melting is
It is recovered by the tar recovery unit 17 and sent to the second melting chamber 13 to be mixed in the melt. Further, the water content in the exhaust gas is separated by the water separation section 18, and the separated water is purified and discharged by the water purification section 19, so that no harmful substance is discharged to the outside.

〔The invention's effect〕

As described above, according to the present invention, the medical waste containing the synthetic resin charged from the hopper is first stirred by the stirring blade of the first melting chamber of the ingot generating unit,
Heated by the side wall heating means and the bottom heating means, the synthetic resin becomes a melt and the medical waste is sterilized. At this time, the unmelted metal and the thermosetting resin are embedded in the melted thermoplastic resin and sent to the second melting chamber by the stirring blade,
Further, the mixture is agitated by a screw, and is shaped like a mortar, and is extruded downward from the lowest hole of the bottom wall to further mix well.

Then, the melt extruded from the hole is solidified in the ingot molding chamber to become an ingot. The volume of the medical waste that has been put in is reduced because it is melted and agitated, and in addition, it is made into an ingot as a completely sterilized product, which facilitates its handling.

Further, the tar contained in the exhaust gas is recovered by the tar recovery unit, is sent to the second melting chamber, and is mixed into the melt. Further, the water content in the exhaust gas is separated by the water separation section, and the separated water is purified and discharged by the water purification section, so that it is possible to prevent harmful substances from being discharged to the outside.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of the present invention, and FIG. 2 is a sectional view showing an ingot molding portion of a medical waste treatment apparatus according to an embodiment,
FIG. 3 is a diagram showing an exhaust gas treatment unit of the medical waste treatment apparatus according to the embodiment, FIGS. 4 (1) (2) (3) are diagrams showing a tar recovery unit, and FIGS. 5 (1) (2) 8] is a diagram showing a water separation unit and a water purification unit. DESCRIPTION OF SYMBOLS 1 ... Hopper 2 ... Extraction part 3 ... Ingot forming part 4 ... Exhaust gas processing part 5 ... Side wall heating means 6 ... Hole part 7 ... Bottom heating means 8 ... Stirring blade 9 ... First melting chamber 10 ... Hole part 11 ... Bottom wall 12 ... Screw 13 ... Second Melting Chamber 14 ... Ingot Forming Chamber 15 ... Rotary Shaft 16 ... Bypass Pipeline 17 ... Tar Recovery Section 18 ... Water Separation Section 19 ... Water Purification Section 20 ... Discharge Section

Claims (1)

[Claims] 1. An ingot molding part (3) arranged in a take-out part (2) for melting a medical waste containing a synthetic resin, which is fed from a hopper (1), and molding it as an ingot to take out the ingot to the outside. And an exhaust gas treatment unit (4) for treating exhaust gas generated in the ingot molding unit (3), wherein the ingot molding unit (3) heats medical waste. A bottom heating means (7) having a side wall heating means (5) and a hole (6) as a melt by stirring the medical waste, and at the same time melting the melt by heating the bottom part (7) of the bottom heating means (7). 6) A first melting chamber (9) having a stirring blade (8) pushed downward and a lower part of the first melting chamber (9) having a hole (10) at the bottom and a mortar shape Bottom wall (11) formed on and with heating means
And a second melting chamber (13) having an outer edge portion close to the bottom wall (11) and a screw (12) for pushing the melt downward from the bottom hole portion (10); Located in the lower part of the melting chamber (13), it stores the extruded melt and consists of an ingot molding chamber (14) that solidifies to form an ingot, the stirring blade (8) and the screw (12). Is rotationally driven by a rotating shaft (15) which is coaxially arranged and is formed in a double shape, while the exhaust gas treatment unit includes a first melting chamber (9) and a second melting chamber (1).
Tar recovery from the exhaust gas recovered from the bypass pipe line (16) connecting with (3) and the first melting chamber (9) and the ingot molding chamber (14) and returning to the second melting chamber (13) Division (17)
And a water separation part (18) for collecting water from the exhaust gas from which tar is recovered and returning the remaining exhaust gas to the second melting chamber (13).
And a water purifying section (19) for purifying and discharging the separated moisture, and a discharging section (20) for discharging a part of the exhaust gas from the moisture separating section (18) to the outside air. Medical waste treatment equipment.